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AT10 PRO

BRECOprotect® -timing belt (open length)

1. Tooth shear strength

specific tooth force

Rotational speed n [rpm] Ftspez [N/cm] Rotational speed n [rpm] Ftspez [N/cm]
0 87,5 2000 48,01
20 86,22 2200 46,41
40 85,01 2400 44,94
60 83,88 2600 43,58
80 82,81 2800 42,3
100 81,8 3000 41,11
200 77,43 3200 39,99
300 73,87 3400 38,93
400 70,88 3600 37,93
500 68,29 3800 36,97
600 66,02 4000 36,06
700 63,98 4500 33,97
800 62,15 5000 32,08
900 60,47 5500 30,36
1000 58,94 6000 28,79
1100 57,51 6500 27,33
1200 56,19 7000 25,98
1300 54,95 7500 24,72
1400 53,79 8000 23,54
1500 52,7 8500 22,43
1600 51,66 9000 21,37
1700 50,68 9500 20,38
1800 49,75 10000 19,43
1900 48,86    

The specific tooth force Ftspez is the maximum force N a belt tooth with a width of 1 cm can transmit. This value depends on the rotational speed of the drive pulley. The calculation takes into account each identical carrying values for each meshing tooth. With more than 12 meshing teeth ze is limited to 12.

Ft = Ftspez * ze * b

Ft = Tangential force
Ftspez = Specific tooth force in N/cm
b = Belt width in cm
ze = Belt width in cm
zemax = 12

2. Tension cord strength (M) Ftzul [N] (open length)

permitted tensile force of the belt cross-section

Belt width b [mm] 25 32 50 75 100
BRECO AT10 PRO 4250 5500 8500 12750 17000

Specific elasticity Cspez [N]:

Example: 10[6] = 106

Belt width b [mm] 25 32 50 75 100
BRECO AT10 PRO 1,06*10[6] 1,37*10[6] 2,12*10[6] 3,18*10[6] 4,25*10[6]

Belt weights [kg/m]:

Belt width b [mm] 25 32 50 75 100
BRECO AT 10 PRO 0,158 0,186 0,290 0,436 0,581

3. Flexibility

Minimum number of teeth, minimum diameter

( X ) without contraflexure
( X X ) with contraflexure
Belt type Number of teeth zmin ( X ) Tension roller dmin [mm] ( X ) Number of teeth zmin ( X X ) Tension roller dmin [mm] ( X X )
BRECO AT 10 BAS 18 60 25 120